Jump to content
  • 0

CAT or O2 Sensor?



I have an '03 Silverado Z71 and the check engine light came on late last night. With the lack of time that I had today I ran by Auto Zone to have them run the code to see what it may be. The fellow told me either that it was either the Cat or the O2 Sensor. Don't think that the guy knew that there were 4 sensors and 2 cats.


Usually on these Trucks which usally goes out first the front sensors or the Cats? What is the life span of the cats? And are the Universal replacement sensors Safe?

Link to comment
Share on other sites

0 answers to this question

Recommended Posts


This topic is now archived and is closed to further replies.

  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Forum Statistics

    Total Topics
    Total Posts
  • Member Statistics

    Total Members
    Most Online
    catchop cd
    Newest Member
    catchop cd
  • Who's Online   2 Members, 0 Anonymous, 612 Guests (See full list)

  • Create New...

Important Information

By using this site, you agree to our Terms of Use.